Agree, people need to read the history of a bill to see changes to the title and the text. Inactive bills (especially with tax provisions - Revenue) sometimes get recycled as a new bill.
Congress takes a prior bill and amends the text and then amends the title of the bill. That is why the bill has two different titles and was introduced January 2019.
(posted last bread, edited)
Congress will often take a revenue bill that passed in the House and sitting "inactive" in the Senate to slip in legislation.
The Congress will do all the back door negotiating and political trades.
The bill will be amended in the Senate to change most or all the bill text.
Then the Senate will amend the bill title.
The amended bill with new purpose, text and title is then sent back to the House and they vote to approve (accept) the amendments.
So while they are conspiring behind closed doors, the media does not ask for the bill reference and the public is unaware of the specific details until passage. Unless your Rep is on the committee, possible they are informed of the details till the bill returns for a vote on the amendments.
Recommend looking at a bill history, even if passed and signed into law.
Check the "introduced" versions and original title.
Can check Actions, and Related Bills on congress.gov for the history.
Congress.gov uses current bill title on displays.
Some examples where a bill was introduced but completely changed text and title by amendment process:
H.R.266 - Paycheck Protection Program and Health Care Enhancement Act
began as 01/08/2019 Department of the Interior, Environment, and Related Agencies Appropriations Act, 2019
H.R.748 - CARES Act
began 1/24/2019 Middle Class Health Benefits Tax Repeal Act of 2019
(provisions of bill may/may not be in final bill)
H.R.1865 - Further Consolidated Appropriations Act, 2020
began as 03/25/2019 National Law Enforcement Museum Commemorative Coin Act
H.R.3590 - Patient Protection and Affordable Care Act (111th Congress)
began as 09/17/2009 Service Members Home Ownership Tax Act of 2009